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Centre for Policy on Ageing | |
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Forever young: visual functions not affected or minimally affected by aging
— a review | | Author(s) | Jay M Enoch, John S Werner, Gunilla Haegerstrom-Portnoy |
| Journal title | The Journals of Gerontology Series A: Biological sciences and Medical Sciences, vol 54A, no 8, August 1999 |
| Pages | pp B336-351 |
| Keywords | Visual impairment ; Ageing process ; Mental ageing ; Research Reviews. |
| Annotation | Six visual functions, once developed to adult levels of performance, have been noted to exhibit little or no alteration with ageing. Those selected for discussion are: the Stiles-Crawford effect of the first kind (SCE-I), also known as "directional sensitivity of the retina"; specific vernier acuity paradigm (including alignment of two lines one with the other, and two and three-point vernier tasks); and colour vision-related perceptual constancies. Each of these functions has rather different origins in the visual system. The SCE incorporates optical waveguide photo-receptor properties and has both physical and physiological origins: vernier acuity is largely the result of neural data processing mechanisms; and the colour vision-related effects have their origins in retinal neural processes. Descriptions of additional visual functions minimally affected by age are also presented. The article concludes with discussion of questions raised by recent research. (RH). |
| Accession Number | CPA-991220236 A |
| Classmark | BR: BG: D6: 3A:6KC |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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